通信网络数据云存储数据库可验证密文检索研究  

Research on Verifiable Ciphertext Retrieval of Communication Network Data Cloud Storage Database

作　　者：黄少琪 陆奕奕[1] HUANG Shaoqi;LU Yiyi(Shanghai Branch, China Telecom Corporation Limited, Shanghai 200433, China)

机构地区：[1]中国电信股份有限公司上海分公司,上海200433

出　　处：《微型电脑应用》2022年第2期120-122,137,共4页Microcomputer Applications

摘　　要：云端数据加密在保障数据安全的同时,也给数据检索工作带来了困难。为此,提出一种通信网络数据云存储数据库可验证密文检索方法。首先分析云存储数据库加密形式,选取字符型数据作为加密检索对象;然后预处理字符型数据,建立密文索引结构,再对用户检索词进行处理,包括去停用词、查询切分、查询扩展、检索词加密等过程,最后通过计算密文检索词块和字符型数据文档密文索引之间的相似匹配度来实现密文检索。对比结果表明应用所提出的方法,密文检索精度更高,检索时间更短,检索效率更高。Cloud data encryption not only ensures data security,but also brings difficulties to data retrieval.Therefore,this paper proposes a verifiable ciphertext retrieval method for communication network data cloud storage database.Firstly,the encryption form of cloud storage database is analyzed,and the character data are selected as the encryption retrieval object.Then,the character data are preprocessed,and the ciphertext index structure is established.Then,the user's key words are processed,including the process of removing stop words,query segmentation,query expansion,and key word encryption.Finally,the relationship between the ciphertext search word block and the ciphertext index of the character data document is calculated to achieve the ciphertext retrieval.The comparison results show that under the application of the pooposed method,the ciphertext retrieval accuracy is higher,the retrieval time is shorter,and the retrieval efficiency is higher.

关 键 词：云存储数据库 检索词处理 密文检索 通信网络 可验证数据 

分 类 号：TP324.6[自动化与计算机技术—计算机系统结构]